Type-writing machine.



Ro.; 533,a27. i j Patant ed Sept. 26, 1399. w. n. Fox a a. J. BARRETT;

TYPE WRITING MACHINE. I

- (Application filed Nov. 26, 1897.

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No. 633,827. Patentedsept 26, I899.

w. n. FOX get-.1. BARRETT.

TYPE WRITINGIAOHIRE.

ineman filed. Nov. 20, 1,897.1 I In Iodal.) 4 Shuts- 8M 2.

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. Patentd septhz'sQ 1899.- w. R. -F0X &. e'. JQ'BAR'BETTL f TYPE'WBITlNG MACHINE.

(Application med Nov. 28, 1 897.-

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(Applicatiun filed xov. 26,1392

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- UNITED STATES- PATENT other- \VILLIAMxRFOXAND GLENN J. BARRETT, orGRAND RAPIDS, MICHIGAN,

ASSIGNORS TO 'rnnrox MACHINE COMPANY, or SAME PLACE.

- 'TYPE-WRITING M ACi-H N E v srncrrrca'rron forming part of LettersPatent No. 633,827, dated September -2c, 1899.

hpplication filed November as, test. Serial No. 659,898. (NomodeLl Toallwhm t it Til/(Ly col o ern Be it known that we, WILLIAM FOX and GLENNJ. BAR-REIT, citizens of the United State's, residing at GrandRapids,Kent county,

Michigan, have invented certain new anduse v fnl ImprovementsinType-Writers, of which the following is a specification.

Itis the object of our invention to provide a ribbon movement fortype-writers in which so as to utilize the entire width of the ribbon.

automatically; and in connection with this mechanism our object is toprovide an automatic reversing mechanism, so that the iongitudinalmovementof the ribbon will be reversed when the predetermined amount ofribbon has been Wound upon either spool.

In the drawings, Figure 1 is a side elevation of our invention, partlyin section. Fig.- 2 is an elevation of the same looking from the front,the paper-carriage and other parts being omitted, so as to show theconnections to the springdrum, whichdrum is located at the rearleft-hand end of the machine. Fig. 3 is a rear view showing themechanism at the two ends of the machine. Fig.4 is a plan view of themechanism at opposite ends of the machine. .Figs. 5 and 6 are views of amodified form of reversing mechanism. Fig. 6 is a plan view, of Fig. 6with parts insection. other modification. the same. Fig. 9 is a detailview showing the arrangement of pawl and its operatingwire located atthe opposite end of the machine from that shown in Fig. 8. y

The spring-drum 22 turns about the shaft 25 in the direction of thearrow, Fig. 2, in drawing the paper-carriage from right to left as thekeys are being operated.

21 is a ratchet fixed to a gear 28, so as to 1'0- tate therewith freelyabout the drum-shaft 25. This ratchet is turned in the direction of thearrow, during the printing and the movement of the paper-carriage fromright to left by a pawl 26, pivoted to the spring-dram 22.

The gear 28 is, elliptical and engages with a similar gear 20,fixed onthe shaft 29, jourhalted in the hanger 23.

Fig; 7 is a view similar to Fig. 1 of an Fig. 8 is a front view of,

Onthe other end of the shaft 29 a ratchet 19 is ii r'edand engaged by apawl 27, pivoted to the hanger-frame 23. This pawl will prevent any backmovement of the ratchet when the drum is turning in the oppositedirection and the carriage is being returned to normal position. Pivotedechehtfioally to this ratchet is a pitman 9, the lowerend of which ispivoted to an arm 9 of the spool-carrier frame 1, which frame is secured to a rock-shaft 30, so that the turning of the ratchet willreciprocate the pitman, and this will oscillate the spool-carrier frames1, one of which is at each side of the machine. T his transversemovementof the ribbon is given while the carriage is moving from rightto left and the printing is being done, the spring-drum rotatingin thedirection of the arrow, Fig. 2. Te utilize this oscillating movement ofthe spool-carrying frames to cause the step-by-step rotation of thespools, and co'nseqnently the longitudinal movement of the ribbon.

I 32 is a ratchet-Wheel fixed to the shaft 3 of the spool 2. A screw 39holds the spool to the shaft, so that the spool will rotate with theratchet. A pawl l i is pivoted on the pawlcarrier arm ct, which ispivoted to the frame at a to oneside of the pivot-shat t of thespoolcarrier. The upper end of this carrier'passes through a guide a" onthe spool-carrying frame, so that as this frame swings forwardly andbackwardly the pawl-carrier will move therewith, so that the pawl willalways be held in the plane of the ratchet-teeth. i The pawl is weightedat 14, and a stop-pin 14. limits its movement. hen the pawl engages'itsratchet and the spool-carrier swings, the pawl will turn the ratchet,owing to the swinging movement of the pawl-carrier and' ribboncarrier,which move on different pivots, so that the pawl and ratchet will movethrough different arcs which out each other. We employ an oscillatingspool-carrier frame 1 at seen end of the machine, and the mechanismconnected therewith is duplicated at the right-hand end of themachine,excepting the spring-drum and part of the mechanism between thesame and the pitman 9,and we aim to provide controlling mechanismwhereby the spool-actuatingpawl 14 at one end of I do the machine willbe out while that at the other will be in engagement with thespool-ratchet. For this purpose we utilize the rocking movement of thespool-carrier frames, together with the decrease in the size of thespool being wound.

In the spool-corcs 2 grooves l0, Fig. 3, are formed, and dogs 4, pivotedat 33 to the spooloarrier frames 1, are arranged to drop with their freeends into these grooves when the spools are unwound. As the spool iswound and reaches the predetermined size, however, the dog will beraised. These dogs carry bellcrank levers 1010, pivoted on axes whichpermit them to swing or move substantially in a horizontal plane. Thearms 11 11 of these bell-crank levers are forked, and they embrace theextended curved ends of the pawl-carriers a, while the other arms ofsaid levers lie in or out of the plane of the lower ends of pins 8 8',which depend from the frame, according to whether the dog is down in thegroove 40 or held up by the ribbon on the spool. Then the dog falls downinto the groove, owing to the unwinding of the ribbon from the spool,the arm 11 or 11 of the bell-crank lever which forms the tail of the dogis raised into line with the lower end of the shift or reversing pin 8or 8, and then when the spool-carrier rocks toward the rear the arm ofthe bellerank will strike the pin and it will be turned thereby, so thatthe forked arm 11 will shift the pawl-carrying arm toward the ratchet toengage the pawl therewith. A rod 12 connects the paw-'l-carrying arms,so that the pawl at one side of the machine will be disengaged from theratchet when the other pawl is thrown in. In Fig. 3 the pawl ontherightis in engagement with its ratchet, while that on the left is outof engagement; but the dog 4 on the left has now fallen, owing to theunwinding of the lefthand spool, and the tail of the bell-crank is nowin line with the lower end of the post 8', so as to engage with and beshifted thereby when the spool-carrier frame is oscillated. A spring 19may be used to press upon the pawlcarriers to hold them in their shiftedposition.

Instead of providing the gravity-dogs with bell-crank levers asdescribed, for effecting the reversal of the ribbon movement we may, asshown in Figs. 6, 7, and 8, provide the dogs with tailpieces 4,extending upwardly there from. To a depending post on the frame we pivota bell-crank lever 10, the forked end of which, 11, projects downwardlyto engage the laterally-bent end of the pawl-carrier, as at 11 The otherarm of the bell-crank lever has a wire 1O connected therewith, and whenthe spool is unwound and the dog falls into the notch the tailpiece ofthe dog is brought opposite the end of the wire 10 so that in theoscillation of the spool-carrier the tailpiece will operate the wire,and this through the bell-crank will shift the pawl-carrier to make itspawl engage with the ratchet. In this form of the invention thepawl-carriers may be connected together by the cross-rod,

and, as shown in the main form of the invention, a turnbuckle may beprovided in this rod for adjustment.

Instead of using the pawl-carriers we may support and operate the pawls14 by means of bell-cranks 13, as shown in Figs. 7 and 8, which arepivoted to the spool-oarrier frames 1 at 34. Wires A are connected withthese bell-cranks and are pivoted at their lower ends to the frame at Sat some distance in rear of the shaft 30 of the spool-carrying frames,these wires performing substantially the same function as thepawl-carriers before described, as their upper ends describe arcs fromdifferent centers from those described by the spool-carrying frames, andas these arcs intersect each other an oscillating movement will be givento the bell-cranks which carry these pawls, and a step-by-step movementwill be imparted to the spools. In this modification the reversingmechanism for the spools comprise wires 10 connected to bellerank levers17, pivoted to standards 18 on the frame, said wires protruding throughopenings in the sides of the spool-carrying frame to have slidingmovement therein. The outer arms of the bell-crank levers are connectedthrough wires 11 with arms 24, projecting from a cross-shaft 6 and fixedrigidly thereto. From these arms wires 15 connect with the pawls bymeans of a loop and pin 38, this connection being made in rear of thepivot of the pawl on one side of the machine and in front of the pivotof the pawl on the other side of the machine, so that the movements ofthe pawls will be reversed relatively to each other and when one pawl isthrown into operation the other pawl will be thrown out. The operationof this is substantially the same as that above described, the unwindingof the spool causing the tailpiece of the dog to operate the bell-cran kand through the wires 11 and 15 throw one pawl into work and the otherpawl out of work by the operation of the shaft 6.

From the above it will be seen that the oscillation of thespool-carrying frame is effected through the step-by-step movements ofthe spring-drum of the carriage, and this oscillating movement isutilized both to rotate the spools step by step and to secure theautomatic reversal of the ribbon-feed. The gears 20 and 28 are madeelliptical to secure a uniform motion of the pitman 9 and to avoiddwelling upon dead-centers.

As shown in Fig. 3, the pivot a for the lower end of the pawl-carrier ais a universal one, as it allows the carrier to have movement toward thefront and back of the machine or from side to side of the machine.

XVe claim as our invention- 1. In combination, the ribbon-spools, thepivot-ed oscillating frames carrying the same and adapted to give theribbon a transverse movement, pawls and pawl-carriers actuated by thepivoted frames for turning the spools step by step and reversingmechanism controlled by the oscillations of the spool-supporting frames,said pawl carrier having movement with the oscillatingframe and havingalso movement in aplane extending from side to side of the machine,substantially as described. r

2. In combination, in a ribbon movement, the ribbon-spools, theoscillating frames supporting the same to give said spools a transversemovement, the pawls for turning the ribbon-spools, carrier means for thepawls consisting of the arms having movement from front to rear and alsoin a direction from side to side of the machine, means for placing thepawls in and out of engagement and controlling means therefor carried bythe oscillating frames, said controlling means being actuated by theunwinding or Winding of the ribbon upon the spools, substantially asdescribed.

3. In combination, in a ribbon movement, the spools, the oscillatingframes carrying the same, the pawls for turning the ribbon-spools, theeccentrically-pivoted carriers for actuating said pawls, said carriersoscillating with the frames, the bell-cranks for controlling thecarriers and the controlling-dogs at pivoted to the oscillating framesand controlling the position of the bell-cranks and the means foroperating the bell-crankssaid means being rendered effective through thechange in the position of the dogs, substantially as described.

4. In combination, the oscillatingspool-carrying frames, the spoolsthereon, the ratchetwheels on the spool-shafts having peripheral teeth,the pawls adapted to engage and disengage said teeth by a substantiallyradial movement in aplane transversely of the spoolshaft, acontrolling-dog carried by the spoolframe and controlled by the ribbon,and means between said dogs and pawls to give them their radial movementfor the reversing action, substantially as described.

5. In combinati0n,the pivoted spool-frames, the pawls, the carrierstherefor having universal pivots at their lower ends to allow movementof the carrier in all directions, reversing means for the pawls andcarriers and the connections between the carriers, substantially asdescribed.

6.111 combination, the movable spool-- frames, the pawls, means carryingthe pawls and to which they are pivoted, dogs carried by thespool-frames, bell-cranks between the dogs and the pawls and inpermanent connection with the pawls and means for operating thebell-cranks, said means being rendered effective to operate thebell-crank by the movement of the dog, substantially as described.

7. In combination, the spools, the supporting-frames therefor movabletransversely of the machine, the pawls rendered active by the transversemovement of the ribbon-spools, controlling means carried by the framesand acted upon by the ribbon, and actuating means supported on themachine-frame and arranged to aline with the means carried by the framesfor reversing the position of the pawls when the spool unwinds.

8. In combination, the spools with the sup porting-frames thereformovable transversely of the machine, the pawls rendered active by saidtransverse movement, and reversing mechanism comprising the dogcontrolled by the ribbon, the operating device connected thereto to movetherewith, and the device on the machine-frame to aline therewith in oneposition ofthe dog to actuate the operating device, substantially asdescribed.

9. In combination the tran sversely-movable frames and spools, thepawls, and reversing mechanism comprising the dogs, the bellcrank leverscarried thereby and connected with the pawls and means on the frame foroperating the bell-cranks, substantially as described.

10. In combination, the movable spool-carrier, the reversing mechanismcomprising the dogs controlled by the ribbon, the bell-cranks carried bythe dogs, the posts on the frame Witnesses:

ELIZABETH JONES,

Fnnnons C. GORI-IAM.

